Improvement in sawing-machine



JAM'Es fr. caesaer Buinenron'r, oHIo.

Imam Patent Nq. 107,211, gaat salaam 13, 1870.

IMPRQVEMENT 1N SAWINGLMAGHIE.

The Schedule referred to in-these Letters Patent and making part of thesance.

To ali lwhom z't'mcy concern:

Be it known that I, JAMES T. Becas, of Bridgeport, in the county ofBelmont and State of Ohio, have invented a new and improvedSawing-Machine and I do hereby declare that the followingis afull,clear, and exact description thereof', which willl enable others skilledinthe art to'make and use the same, reference being had to theaccompanying drawing forming a part of this specification. v

My invention relates to sawing-machines, and cousists in certainimprovements hereinafter described and specified in claim.

Figure 1 is a side elevation of my ir'nprovedv machine;

Figure 2 is d plan View ;4

Iilgure 3. is an end elevation; and

Figure 4 is a detailv view of 'the saw-mandrel and the collars forholding the saw so as to wabble.

Figure 5 is a section through the collars.

Similar letters of reference indicate corresponding parts.

vI propose to hang the saw to run in a plane perpendicular tothe arborby the use of ordinary. collars, with' cylindrical holestting the\arbor, tobe screwed up against the collar A ou -the mandrel, forordinary sawing; and for cutting Vwide' grooves, making rebates, andthelike, I .propose to hang the sa'wso'that it will wabble; and for this Iprovide collars, B and O, with the out'er ends curved'onradii extendingVto t-he'center of the saw, and with holes widening on two sides fromthenner ends outward, to admit of adjusting the said collarsobliquely onthe mandrel.

The collar c is provided with se.tscrews,1), on the same sides with thewidened parts of the holes, curving-against the mandrel, and shiftingthe collars and the saw, to make thelatter more or less oblique.

It will be seen that, by this arrangement, the

saw can be adjusted without loosening the clampingnut E. The saw-arboris mounted in thetopof the frame li', which may serre as a table forordinary work,for which it is not necessary to use my adjustable tableG, which is mounted jon knife-edges on the top of reitical supporta-H,and provided with semicircula'r' slotted braces, I, working overclamping-screws, K, for clamping Athem agaiust'the supportsv H, to holdthe table level, or at any other required inclination.

These supports H are groovcd at one side, and ntted to slide up and downon the -edges of. the end supports of the frame F, to which they, areheld by screws, L, passing through slots which admit them to slide onthe saidy screws.

M represents adjusting-screws resting in steps in brackets, N, on theframe, and screwing through lugs, O, on the supports H. They areprovided'with wormwheels, P, gearing with worms,rQ, on a shaft, R,cxtending from end to end of lthc frame, and provided with a hand-crank,for turningit to raise or lower the table.

The gauge consists of a clamp, S, for clamping to a slide, T, and aplate, U, jointed to the plate S, so4 as to 'stand -in a vertical oroblique plane, and be held in any posit-ion by a slotted brace, V,jointed toplate U, and connected to a post, W, :on the plate S by'aclamping-screw, X. f v r This plate U is jointed to plate S by-'meaus ofpins ou the. latter passing throughA slots in lugs on the frame, so thatthe lower edge of the plate U will always rest on the table, no mat-terwhat may be the to a scale, the same being arranged with the edge of thetable.

The plate S is pivoted to the -slideT by a set- Screw, Y, on which itoscillatcs for adjustment to lines parallel'with the side of the-saw,and the outer end,

of the plate has a curved slot, through which a clamping-screw, Z,passes to secure it when properly adjusted. if ZI is a springattached-.to ythe side of the guideplate U, near the upper edge, by ashank, Z, fitted to slide in and out of a tubular holder, Z, -where itis held by a set-screw, which admits of adjusting to the spring for wideor narrow strips, which this spring is designed to hold upsnuglyagainstthe side of the guide.

Zz is a spring, similarly attached, and arranged to' bear upon the topof the strips to hoid them down.

It will be seen that this machine 'may be used' for a great variety ofwork besides ordinary sawing; for example, plowing window-frames,rebating doors, windows, and moldings, making doretail-grooves,corneringr moldings, ripping angular strips, and many other operations.

The table may be the screws L. Having thus described my invention,

What I claim as new, and desire -to secure by Letters Patent, is-

1. The table G andthe semicireular slotted braces I,-'in combinationwith knife-edged supports'H- and clamping-screws K, each constructed asand for the purpose specified.

2. The combination, with the frame F and table G,

of the slides H, screws M, shaft R, worm-gears Q P, semicircular slottedarms I, and clamp-screws K L, all substantially as specified,

' 3. The combination, with the guide-plate U, ofthe springfguides Zl andZ2, substantially as specilied.

Witnesses: JAMES T. BAGGS.

' A. J Braces,

It. H.- GLAYLAND.

readily taken Oi'by' removing

